Three men in their twenties have been charged with the murder of 45-year-old, father-of-two Wayne Andrew Dover outside a Maroochydore nightclub in the early hours of Saturday morning.

Read about the men remanded in custody over the Sunshine Coast murder here.

Former Young Australian of the Year, Jonty Bush, developed the 'One Punch Can Kill' campaign.

She says research shows most violent assaults involve alcohol.

"Alcohol is I would say a component of 10 percent of them. Alcohol is without fail involved.

"I was doing some project work for Local Government and we were monitoring people's drinking trends and actions in and out of drinking precincts and certainly you would see the most amount of carnage from 11pm through until 5am," says Ms Bush

No stranger to tragedy, Jonty's younger sister was murdered and five months later, her father was killed in an unprovoked attack.

Later Jonty became a volunteer with the Queensland Homicide Victims support group where she has helped push for a review of laws surrounding murder and manslaughter.

Deeply saddened by the recent death on the Sunshine Coast, Jonty says violence impacts so many families.

"Yeah - oh my God - look, my heart breaks every time I hear it. You physically feel it in your stomach. I'm probably speaking about anyone that's lost a loved one - when you see that played out again in television - your heart breaks for that family.

Jonty says the campaign was started to prevent violence from happening in the first place.

"We wanted to remove the ambiguity around even the smallest act of violence.

"There seemed to be a sense within the community and certainly within the young people that we were speaking to, that one or two punches really couldn't hurt someone - that they would get up and walk away and unfortunately we were seeing quite tragic results from that ...and it impacts on everyone. It has a catastrophic impact on the victim.

"But also the idea behind the message of One Punch Can Kill, is even if it isn't a fatality, even if you end up on an assault or grievous bodily harm or manslaughter charge and are convicted of that as the perpetrated, you are going to have issues around employment, your facing prison time, issues of having a visa if you want to travel down the track.

"Second to that, we wanted to reach out to potential jury members - we were having a number of acquittals in Queensland in 2007 around these one punch fatalities. The juries were being asked about foresee-ability - how foreseeable was it that this person could die from the result of one punch? And juries were completely acquitting people, because to them it simply wasn't foreseeable.

"So really it was that two-pronged approach within the court system but certainly the over-arching aim was to reduce violence," says Jonty.